WEB BASED GIS SUPPORTING THE ASSESSMENT OF
EARTHQUAKE-TRIGGERED LANDSLIDES PROJECTS

R.
Perez

Technical University of Madrid (UPM), Spain

rufino@topografia.upm.es

The ANDROS Project is an interdisciplinary
approach with Civil Engineers, Geologists, and experts in Seismology and GIS in
order to develop a methodology to evaluate the hazard assessment of
earthquake-triggered catastrophic landslides. The method is validated using
available data from the El Salvador earthquakes of January and February of
2001. The database includes field observations of more than 600 landslides
together with digital cartography, geological maps, and strong motion records
from both earthquakes. The predicted hazard model is compared to real
observations. The parameters are subsequently recalibrated in order to obtain a
new model which fits better the observations.

Internet, because its accessibility and
actuality, has become a very efficient way to disseminate geospatial data. On
the other hand, the last generations of GIS programs provide some enhance
features such as interoperability, increased viewing flexibility, more powerful
analytical tools and scalability. Finally, the development of Spatial Data
Infrastructures (SDIs) based in the Open GeoSpatial Consortium (OGC) specifications
have opened promising opportunities for cartographers and GIS experts.

The main purpose of this paper is to
briefly describe how the GIS, Digital Mapping, Internet and SDIs concepts and
tools can effectively contribute in the modeling, analysis and visualization
phases within an engineering or research project. In this particular case, to
the assessment of earthquake-triggered landslides projects. Besides enabling
real-time GIS analysis – anytime, anywhere, the distribution of the GIS
information to a wider audience on the Web increase its overall value to the
research group. It may also mention how GIS professionals are able to share
complex, georegistered, geospatial data, extracted from GIS project databases,
asGeoPDF files with non-technical professionals
in a variety of ways. It can be used in education, research o simply in the
dissemination of map information to the targeted clients or the general public.